JavaScript 实现打字效果
function typing(that) { that = typeof(that.length) == 'undefined' ? [that] : that; for(var i = 0; i < that.length; i ++) { let text = that[i]; let str = text.innerHTML; let index = 0; text.innerHTML = ''; let timer = setInterval(function() { var current = str.substr(index, 1); if(current == '<') { index = str.indexOf('>', index) + 1; } else { index ++ ; } text.innerHTML = str.substring(0, index) + (index & 1 ? '_': ''); if(index >= str.length) { text.innerHTML = str.substring(0, index); clearInterval(timer); } }, 40); } } typing(document.getElementsByClassName('words1')); typing(document.getElementById('words2'));
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